85455328764 has 48 divisors (see below), whose sum is σ = 216860021280. Its totient is φ = 26033606400.

The previous prime is 85455328759. The next prime is 85455328801. The reversal of 85455328764 is 46782355458.

It is a super-2 number, since 2×85455328764² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2696079 + ... + 2727590.

It is an arithmetic number, because the mean of its divisors is an integer number (4517917110).

Almost surely, 2^85455328764 is an apocalyptic number.

It is an amenable number.

85455328764 is an abundant number, since it is smaller than the sum of its proper divisors (131404692516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85455328764 is a wasteful number, since it uses less digits than its factorization.

85455328764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5423790 (or 5423788 counting only the distinct ones).

The product of its digits is 32256000, while the sum is 57.

The spelling of 85455328764 in words is "eighty-five billion, four hundred fifty-five million, three hundred twenty-eight thousand, seven hundred sixty-four".